<template>
    <div>
        <el-form :rules="rules" ref="loginForm" :model="loginForm" class="loginContainer">
            <h3 class="loginTitle">系统登录</h3>
            <el-form-item prop="username">
                <el-input type="text" v-model="loginForm.username" auto-complete="off" placeholder="请输入用户名"></el-input>
            </el-form-item>

            <el-form-item prop="password">
                <el-input type="text" v-model="loginForm.password" auto-complete="off" placeholder="请输入密码"
                          @keydown.enter.native="submitLogin"></el-input>
            </el-form-item>

            <el-button type="primary" style="width:100%;" @click="submitLogin">登录</el-button>

        </el-form>
    </div>
</template>

<script>
    export default {
        name: "Login",
        data() {
            return {
                loginForm: {
                    username: 'admin',
                    password: '123'
                },
                checked: true,
                rules: {
                    username: [{required: true, message: '请输入用户名', trigger: 'blur'}],
                    password: [{required: true, message: '请输入密码', trigger: 'blur'}]
                }
            }
        },
        methods: {
            submitLogin() {
                this.$refs.loginForm.validate((valid) => {
                    if (valid) {
                        //alert('登录成功');
                        this.postKeyValueRequest("/doLogin", this.loginForm)
                            .then(resp => {
                                if (resp) {
                                    // 登录成功, 后存储返回用户信息
                                    this.$store.commit("login", resp.obj);
                                    window.sessionStorage.setItem("user", JSON.stringify(resp.obj));//将JSON对象resp转化为字符串

                                    let path = this.$route.query.redirect;
                                    //两个方法：replace和push
                                    //区别：push可以页面后退 replace不可以
                                    //path是获取重定向的. 三元-> 重定向路径path没有或是'/'就正常到'/home',否者就去重定向路径
                                    //如果(path=='/'||path==undefined)，就去home页，否则去path
                                    this.$router.replace((path == '/' || path == undefined) ? '/home' : path);
                                }
                            })

                    } else {
                        this.$message.error("登录错误，请输入所有字段");
                        return false;
                    }
                });
            }
        }
    }
</script>

<style>
    .loginContainer {
        border-radius: 15px;
        background-clip: padding-box;
        margin: 180px auto;
        width: 350px;
        padding: 35px 35px 15px 35px;
        background: #fff;
        border: 1px solid #777777;
        box-shadow: 0 0 25px #cac6c6;

    }

    .loginTitle {
        margin: 15px auto 20px auto;
        text-align: center;
    }

    .loginRemember {
        text-align: left;
        margin: 0px 0px 15px 0px;
    }

</style>
